Which best states the purpose of this excerpt?
it introduces the disagreement of the parents.
it explains who the main characters are.
it speaks about the setting of the play.
it foreshadows the outcome of the play.

The statement, 'It foreshadows the outcome of the play' best states the purpose of excerpt

Explanation:

Excerpt is an instrument in English which is used from the beginning of English literature. Excerpt is used by many famous play writers as it is one of the best ways to foreshadow a play, it helps foreshadowing in such a way, the play gets more intense and interesting for the audience.

One of the most famous examples of usage of excerpt is in the play written by William Shakespeare called Romeo and Juliet. The expert brings in the conflicts and the disagreements of the parents, it helps in explaining the mail characters and helps in foreshadowing the play.

dramatic irony is the answer

explanation: the line "to save the day, harry must get past a scary three-headed guard dog" from the summary best justifies the conclusion that harry potter and the sorcerer’s stone was influenced by ancient greek mythological literature. the three other choices had nothing to do with ancient greek literature - and the words "three-headed guard dog" are what makes that choice the correct answer.